JP3634464B2 - Disaster prevention monitoring control panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disaster prevention monitoring control panel, and more particularly to a disaster prevention monitoring control panel in which a small door that covers each maintenance switch provided on an operation display panel is attached to be freely opened and closed.
[0002]
[Prior art]
As a conventional disaster prevention monitoring control panel, for example, the one shown in FIG. 9 is known (see Japanese Utility Model Laid-Open No. 5-40994).
In FIG. 9, 1 is a box-shaped housing made of a metal plate, 2 is a door made of a metal plate attached to the housing 1 so as to be openable and closable, and has a window hole slightly above the center. In the window hole of the door 2, operation display panels such as the operation plate 3, the display plate 4 and the extension display plate 5 are arranged at predetermined positions. 7 is fixed with screws. A printed circuit board 8 is fixed to the back plate of the housing 1, and a terminal block 9 is mounted on the printed circuit board 8. Reference numeral 10 denotes a protective plate for the printed circuit board 8. A transformer 11 is attached to the back plate of the housing 1, and a standby power supply 12 is accommodated in the housing 1.
[0003]
The operation unit 3 is provided with various setting switches and a maintenance switch display unit used for maintenance and inspection. The maintenance switch display unit is opened and closed to cover the switches and the like so that they are not operated by mistake during normal monitoring. A flexible door is attached.
FIG. 10 is an explanatory diagram of attachment of the small door to the operation plate 3, and is a view of the operation plate 3 as viewed from the front.
[0004]
In FIG. 10, a mounting member 13 formed in a concave shape and a mounting member 14 formed in an L shape are inserted into the mounting holes 4A, 4B, and 4C, respectively, and fixed to the operation plate 3 by welding. Screw holes 13A and 14A into which screws 15A and 15B are inserted are formed in the attachment portions 13 and 14, respectively.
The protruding piece 13B of the mounting portion 13 has a function as a stopper member, and when the small door 16 is opened, the lower plate 16A of the small door 16 contacts the lower surface of the protruding piece 13B, and the small door 16 does not hang down. I am doing so. Attachment portions 16B and 16C formed in an L shape are fixed to the small door 16 by welding to the attachment portions 13 and 14, respectively.
[0005]
Screw holes 16D and 16E are respectively formed in the mounting portions 16B and 16C. The screw holes 13A and 14A and the screw holes 16D and 16E of the mounting portions 13 and 14 of the operation plate 3 are screwed into the operation plates by screwing the screws 15A and 15B. A small door 16 is attached to 3 in a freely openable / closable manner. In addition, a locking portion 17 that is locked when the small door 16 is closed is provided in the upper center of the display plate 4, while a protrusion 18 that is locked to the locking portion 17 is provided on the back surface of the small door 16. It is provided in the upper center.
[0006]
[Problems to be solved by the invention]
However, in such a conventional disaster prevention monitoring control panel, two screws and two attachment parts are necessary as parts for attaching the small door to the panel. In addition, a locking portion that is fixed to the panel when the small door is closed, and a protrusion that is fixed to the small door are required, which increases the number of parts. In addition, since the two doors are welded to the small door, the number of manufacturing steps increases, and it takes time and effort to assemble.
[0007]
In addition, each panel such as a conventional display panel is attached to the door side of the housing, and when performing maintenance on the housing, various maintenance switches are operated while opening the small doors. In order to view the inside of the enclosure, you must open the door or close the door to operate the maintenance switch. Met.
[0008]
Furthermore, when a strong load is applied to the small door, the mounting portion may be deformed and damaged.
The present invention has been made in view of such conventional problems, and can be easily assembled by reducing the number of parts and the number of manufacturing steps, thereby eliminating the complexity of work at the time of maintenance. An object is to provide a disaster prevention monitoring control panel capable of preventing the door from being damaged.
[0009]
[Means for Solving the Problems]
In order to achieve this object, the present invention is configured as follows.
Small First, the present invention includes a housing, a door which opens the panel display windows on the position of the operation display panel mounted openably in the housing, the manipulation display panel covering a portion of the operation display portion Targeting disaster prevention control panels equipped with doors that can be opened and closed.
[0010]
For such a disaster prevention monitoring control panel, the present invention provides an operation display panel on the housing side, and the rotating means and the locking means are integrated with either the small door mounting portion of the operation display panel or the panel mounting portion of the small door. And the turning means and locking means corresponding to the other are integrally formed, and the fixed angle with respect to the operation display panel when the small door is opened is set to an angle at which the door can be opened and closed even when the small door is opened. characterized in that it has been set to a dimension that can open and close the door even when the width of the small door small door opened.
[0011]
Further, according to the present invention, the stopper member that contacts the lower surface of the operation display panel when the small door is opened is formed integrally with the small door.
As described above, the operation display panel is provided on the casing, and the mounting portion having the rotation means and the locking means formed at the lower ends of the operation display panel is integrally formed, and the operation display panel is rotated on the small door. Since the small door side turning means and locking means corresponding to the locking means are integrally molded, there is no need for parts to attach the small door to the operation display panel, reducing the number of parts and manufacturing man-hours In addition, assembly and removal are facilitated. In addition, maintenance can be performed with the door open, eliminating the complexity of maintenance work.
[0012]
In addition, since the small door is molded with an elastic mold resin member and attached to the mounting part of the operation display panel, even if a strong load is applied to the small door, the small door will be distorted and come off, and the small door will be loaded as in the conventional example If applied, the mounting portion will not be deformed and damaged.
In addition, the mounting angle with respect to the operation display panel when the small door is opened is set to an angle at which the door can be opened and closed even when the small door is opened, and the width of the small door is set such that the door can be opened and closed even when the small door is opened. Because it is set, the door can be opened and closed regardless of the opening and closing of the small door during maintenance.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of a disaster prevention monitoring control panel according to the present invention.
In FIG. 1, reference numeral 21 denotes a back plate, 22 denotes a main body frame, and 23 denotes a door. The disaster prevention monitoring control panel 24 includes a housing and a door 23 including the back plate 21 and the main body frame 22.
[0014]
The back plate 21 is made of a metal plate, and is screwed and fixed to a back plate joint portion 25 formed on the main body frame 22. A circuit board 27, 28, 29 on which a terminal block 26 and the like are mounted, a transformer 30, an operation display panel 32 with a circuit board 31 mounted on the back surface, and the like are fixed to the back plate 21. A plurality of support bases 33 are provided on the back plate 21, and the support bases 33 support the circuit boards 27, 28, and 29. Reference numeral 36 denotes a fixing bracket provided on the back plate 21, and one end of the operation display panel 32 is fixed to the back plate 21 by the fixing bracket 36.
[0015]
A long hole 37 is formed in the upper center of the back plate 21, and a signal line is drawn from the long hole 37 and connected to the circuit boards 27, 28, 29 and the like. In addition, attachment holes 38 for attaching the disaster prevention monitoring control panel 24 to the wall surface are formed in the left and right back plates 21 of the long hole 37.
As shown in FIG. 2, a display window 39 for a fire representative lamp or the like is formed in the upper part of the operation display panel 32, and a district display window 40 for displaying a district where a fire has occurred is displayed below the display window 39. Is formed.
[0016]
An acoustic hole 42 is formed on the lower left side of the district display window 40. On the right side of the acoustic hole 42, an indicator lamp 43 for displaying various setting conditions and monitoring conditions, various setting switches 45, and the like are provided. Various maintenance switches 46 are provided at the bottom of the operation display panel 32, and an indicator lamp 47 for displaying the switch operation is provided above each maintenance switch 46. A small door 49 is provided on the lower portion of the operation display panel 32 provided with these switches 46 and the respective indicator lights 47 via an attachment portion 48 so as to be opened and closed. The operation display panel 32 is integrally formed with a mounting portion 50 attached to the back plate 21, and the operation display panel 32 is fixed to the back plate 21 by the mounting portion 50.
[0017]
The door 23 is made of a metal plate, has a panel display window 51 in which the operation display panel 32 appears when the door 23 is closed, and has an insertion hole 53 into which the door closing portion 52 is inserted. Further, a fixing hole 55 into which a rivet 54 for fixing the door 23 to the main body frame 22 is inserted is formed at an upper end portion of the door 23.
The main body frame 22 is composed of an upper wall 56, a lower wall 57 and side walls 58, 59 made of a metal plate, and a back plate joining portion 25 joined to the back plate 21 on the upper wall 56, the lower wall 57 and the side walls 58, 59. Is formed.
[0018]
The upper wall 56 and the lower wall 57 are fixed with a door fixing stay 61 partially protruding from the front surface, and the protrusion 61A of the door fixing stay 61 is formed with a fixing hole 62 into which the rivet 54 is inserted. The door 23 is attached to the main body frame 22 by inserting the rivets 54 into the fixing holes 62 and 55. Further, a spacer 63 is inserted between the door fixing stay 61 and the door 23 to facilitate the rotation of the door.
[0019]
Next, FIG. 3 is a view showing the operation display panel 32 and the small door 49 taken out.
In FIG. 3, a pair of attachment portions 48 are integrally formed with mold resin at both lower ends of the operation display panel 32. A locking hole 70 as a locking means made of a square hole is formed at the upper end of the mounting portion 48, and a shaft hole 71 as a rotating means made of a round hole is formed at the lower end. A small door 49 is detachably attached to the attachment portion 48 of the operation display panel 32 through a locking hole 70 and a shaft hole 71. Various switches 46 for maintenance provided on the lower side of the operation display panel 32 and an indicator lamp 47 for displaying the operation of the various switches appear when the small door 49 is open, and are displayed when the small door 49 is closed. It has become. The small door 49 is formed of an elastic mold resin member. The small door 49 is provided with an upper plate 73 formed with a groove for opening the small door 49, and locking projections 74 as locking means to be locked to the locking holes 70 of the mounting portion 48 at both ends in the longitudinal direction. A locking piece 75 and a shaft support portion 77 having a shaft portion 76 as a rotating means that is rotatably inserted into the shaft hole 71 of the mounting portion 48 are integrally formed.
[0020]
The small door 49 is attached to the mounting portion 48 of the operation display panel 32 by inserting the shaft portion 76 into the shaft hole 71 of the mounting portion 48 with the small door 49 slightly bent. Further, the small door 49 is closed by rotating the small door 49 upward after insertion and locking the locking projection 74 in the locking hole 70.
Next, FIG. 4A is a rear view of the small door 49, and FIG. 4B is a side view of the small door 49.
[0021]
4A and 4B, notches 78 are formed at both ends of the door main body 72, and the notches 78 come into contact with the lower surface of the mounting portion 48 of the operation display panel 32 when the small door 49 is closed. . Continuing from the notch 78, a rounded portion 79 is formed in accordance with the curved surface of the corner of the panel display window of the door 23. In the vicinity of the notch 78, a shaft support portion 77 including a shaft portion 76 that protrudes outward to make the small door 49 turnable is integrally formed. A rectangular locking piece 75 is erected on the opposite side of the shaft support portion 77, and a locking projection 74 protruding outward in the axial direction is integrally formed on the locking piece 75. An upper plate 73 is integrally formed on the upper side of the small door 49 from one end portion to the other end portion, and a plurality of grooves 80 are formed in the middle of the upper plate 73. A lower plate 81 is formed below the small door 49 as a stopper member for fixing the small door 49 to a predetermined height in the open state.
[0022]
Next, FIG. 5 is a view showing a state in which the small door 43 is attached to the operation display panel 32 and opened.
In FIG. 5, the shaft portion 76 of the small door 49 is rotatably inserted into the shaft hole 71 of the mounting portion 48 formed integrally with the operation display panel 32. In this way, the small door 49 is detachably attached to the operation display panel 32. When the small door 49 is opened, the end surface of the lower plate 81 of the small door 49 is in contact with the lower surface of the operation display panel 32, and the lower plate 81 functions as a stopper member. By adjusting the height of the lower plate 81, the fixed angle when the small door 49 is opened with respect to the operation display panel 32 can be regulated.
[0023]
Here, the fixed angle when the small door 49 is opened is set to be substantially perpendicular to the operation display panel 32 so that the door 23 can be opened and closed even when the small door 49 is opened. When closing the small door 49, the small door 49 may be rotated to the operation display panel 32 side to lock the locking protrusion 74 of the small door 49 into the locking hole 70 of the mounting portion 48. Next, FIG. 6 is a view showing a state in which the door 23 is opened and closed with the small door 49 opened.
[0024]
In FIG. 6, a back plate 21 is screwed and fixed to the rear portion of the main body frame 22, and an operation display panel 32 is fixed to the back plate 21. A small door 49 is attached to the operation display panel 32 through an attachment portion 48 so as to be freely opened and closed. The main body frame 22 is provided with a door fixing stay 61, holes 62 and 55 are formed in the door fixing stay 61 and the door 23, and through the rivets 54 in the holes 62 and 55, the rivets 54 are attached to the main body frame 22. It is attached so that it can be opened and closed freely.
[0025]
A shows the distance from the rivet 54, which is a fulcrum for opening and closing the door 23, to one end of the panel display window 51 formed on the door 23, and B shows the movement of one end of the panel display window 51 when the door 23 is opened. Showing traces of
C indicates a trace of movement of the other end of the panel display window 51 when the door 23 is opened. D is a lead line extending from the shaft portion 76 of the small door 49 along the end surface of the small door 49, and a point E where the lead line D and a line B indicating the movement of one end of the panel display window 51 intersect. The size (height) of the small door 49 is set so that the distance L2 is shorter than the distance L1 between the shaft portion 76 and the shaft portion 76. Thereby, even when the small door 49 is opened, the door 23 can be opened and closed. Further, the fixed angle with respect to the operation display panel 32 when the small door 49 is opened is set to an angle that is substantially perpendicular to the operation display panel 32 as described with reference to FIG. Thus, the door 23 can be opened and closed even when the small door 49 is opened.
[0026]
Next, FIG. 7 and FIG. 8 show a completed perspective view assembled with the disaster prevention monitoring control panel of FIG. 1, FIG. 7 shows a state where the small door 49 is opened, and FIG. 8 shows a state where the small door 49 is closed. .
As shown in FIG. 7, the small door 49 can be opened and closed with respect to the operation display panel 32 by inserting the shaft portion 76 of the small door 49 into the shaft hole 71 of the mounting portion 48 formed integrally with the operation display panel 32. In addition, it is detachably attached. The small door 49 can be easily assembled and removed from the operation display panel 32. Since the lower plate 81 of the small door 49 abuts on the lower surface of the operation display panel 32 and has a function as a stopper member, the small door 49 is held substantially perpendicular to the operation display panel 32 as shown in the figure.
[0027]
When a strong load is applied to the small door 49 from above in the open state of the small door 49, the small door 49 is formed of an elastic mold resin member and is distorted. As a result, the small door 49 is detached from the mounting portion 48. When closing the small door 49, when the small door 49 is rotated to the operation display panel 32 side, the locking projection 74 of the small door 49 is locked in the locking hole 70 of the mounting portion 49, as shown in FIG. The small door 49 is closed.
[0028]
In this embodiment, the operation display panel 32 is provided with the locking hole 70 and the small door 49 is provided with the locking projection 74, but this configuration may be reversed. That is, the operation display panel 32 may be provided with a locking projection and a small hole provided with a locking hole. The shaft hole and the shaft portion as the rotating means may be similarly reversed.
[0029]
【The invention's effect】
As described above, the operation display panel is attached to the housing, the attachment portion for attaching the small door is formed integrally with the operation display panel, and the locking means and the rotation means for attaching to the operation display panel are integrated with the small door. Therefore, there is no need for parts for attaching the small door to the operation display panel, and the number of parts can be reduced. Also, as in the conventional example, the number of manufacturing steps for welding and fixing the attachment part is reduced. Also, assembly and removal are easy. In addition, maintenance can be performed with the door open, and the complexity of work during maintenance can be eliminated.
[0030]
In addition, since the small door is made of an elastic mold resin member, even if a strong load is applied to the small door, the small door is easily distorted and easily disengaged. And will not be damaged. Since the door can be opened and closed even when the small door is opened, the small door is not broken.
In addition, since the operation display panel is attached to the housing and the door can be opened and closed even when the small door is opened, even after closing the door without closing the door, the door closes without closing the small door. The small door will not come off.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a disaster prevention monitoring control panel of the present invention. FIG. 2 is a perspective view of an operation panel. FIG. 3 is a view showing an operation display panel and a small door. Fig. 6 shows the installation of the small door to the operation display panel. Fig. 6 shows the open / closed state of the door when the small door is opened. Fig. 7 shows the front of the disaster prevention monitoring control panel when the small door is opened. ] Figure showing the front of the disaster prevention monitoring control panel when the small door is closed [Figure 9] Figure showing the conventional example [Figure 10] Figure showing the main part of the conventional example [Explanation of symbols]
21: Back plate 22: Main body frame 23: Door 24: Disaster prevention monitoring control panel 32: Operation display panel 48: Mounting portion 49: Small door 70: Locking hole 71: Shaft hole 73: Upper plate 74: Locking protrusion 75: Locking piece 76: shaft portion 77: shaft support portion 81: lower plate

Claims (1)

A case and a door that is attached to the case so as to be openable and closable and has a panel display window at the position of the operation display panel. The operation display panel includes a small door that covers a part of the operation display part. In the disaster prevention monitoring control panel,
The operation display panel is provided on the housing side ,
Rotating means and locking means are integrally formed on one of the small door mounting portion of the operation display panel and the panel mounting portion of the small door, and the rotating means and locking means corresponding to the other are integrally formed. and,
The fixed angle with respect to the operation display panel when the small door is opened is set to an angle at which the door can be opened and closed even when the small door is opened, and the width of the small door is set even when the small door is opened. Is set to a dimension that can be opened and closed ,
Furthermore, the small door is made of an elastic mold resin member, and is detachably attached to the operation display panel .

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